/**
 * Author: w景洋.
 * Time: 2016/6/22 0022
 */
function open(openClass){
    document.getElementById(openClass).style.display='block';
}

function close(closeClass){
    document.getElementById(closeClass).style.display='none';
}

function closeAndOpen(closeClass,openClass){
    document.getElementById(closeClass).style.display='none';
    document.getElementById(openClass).style.display='block';
}